Internet is unbearably & abnormally slow on one PC after recovery using sony recovery partition

Question

I recently restored a laptop, a custom SONY VPCF1390X, using the built-in recovery partition. Everything went about as well as I expected, but I noticed that download speeds were much lower than what I usually get. I've checked my network speed on the laptop and on other PCs I own and it seems to be the only one affected, what takes less than a minute to download on my desktop takes hours on this laptop, And there were no network problems before I restored it.

My first thought was to download the drivers, which is actually what I was trying to do when I noticed speed discrepancy. So I checked Sony's page and my drivers were up-to-date. I downloaded and installed them anyway, in hopes that it may fix it, but it did nothing.

Since then I've changed ISPs and went from 5mbps (which was closer to 3mbps) to 40-41mbps. But still had the same awful performance, it didn't even scale with the upgrade, stayed basically the same. It does seem to be sporadic, though very frequent, enough that the slow is the norm, with very small bursts of speed every once in a while.

I've even taken the computer to work and used the network there with no effect. My original idea was to restore this computer back to a fresh state so that I could use it in my job, but as a programmer, I often need to download large files and use the internet to research solutions, so I'm stuck with my previous laptop until I can fix this problem.

PS: Problem exists when connected either by cable or wireless.

Here is a post with the laptop's specifications:

http://pastebin.com/7Jb6aYQG

Also an out of ipconfig /all:

Windows IP Configuration

   Host Name . . . . . . . . . . . . : Anvil
   Primary Dns Suffix  . . . . . . . :
   Node Type . . . . . . . . . . . . : Hybrid
   IP Routing Enabled. . . . . . . . : No
   WINS Proxy Enabled. . . . . . . . : No

Wireless LAN adapter Wireless Network Connection 2:

   Media State . . . . . . . . . . . : Media disconnected
   Connection-specific DNS Suffix  . :
   Description . . . . . . . . . . . : Microsoft Virtual WiFi Miniport Adapter
   Physical Address. . . . . . . . . : XX-XX-XX-XX-XX-XX
   DHCP Enabled. . . . . . . . . . . : Yes
   Autoconfiguration Enabled . . . . : Yes

Ethernet adapter Bluetooth Network Connection:

   Media State . . . . . . . . . . . : Media disconnected
   Connection-specific DNS Suffix  . :
   Description . . . . . . . . . . . : Bluetooth Device (Personal Area Network)
   Physical Address. . . . . . . . . : XX-XX-XX-XX-XX-XX
   DHCP Enabled. . . . . . . . . . . : Yes
   Autoconfiguration Enabled . . . . : Yes

Wireless LAN adapter Wireless Network Connection:

   Connection-specific DNS Suffix  . :
   Description . . . . . . . . . . . : Atheros AR9287 Wireless Network Adapter
   Physical Address. . . . . . . . . : XX-XX-XX-XX-XX-XX
   DHCP Enabled. . . . . . . . . . . : Yes
   Autoconfiguration Enabled . . . . : Yes
   IPv4 Address. . . . . . . . . . . : 192.168.0.11(Preferred)
   Subnet Mask . . . . . . . . . . . : 255.255.255.0
   Lease Obtained. . . . . . . . . . : Thursday, April 24, 2014 8:47:05 PM
   Lease Expires . . . . . . . . . . : Thursday, April 24, 2014 9:47:05 PM
   Default Gateway . . . . . . . . . : 192.168.0.1
   DHCP Server . . . . . . . . . . . : 192.168.0.1
   DNS Servers . . . . . . . . . . . : 24.55.102.2
                                       24.138.234.252
                                       24.55.102.3
   NetBIOS over Tcpip. . . . . . . . : Enabled

Ethernet adapter Local Area Connection:

   Media State . . . . . . . . . . . : Media disconnected
   Connection-specific DNS Suffix  . :
   Description . . . . . . . . . . . : Marvell Yukon 88E8057 PCI-E Gigabit Ethernet Controller
   Physical Address. . . . . . . . . : XX-XX-XX-XX-XX-XX
   DHCP Enabled. . . . . . . . . . . : Yes
   Autoconfiguration Enabled . . . . : Yes

Tunnel adapter Teredo Tunneling Pseudo-Interface:

   Connection-specific DNS Suffix  . :
   Description . . . . . . . . . . . : Teredo Tunneling Pseudo-Interface
   Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
   DHCP Enabled. . . . . . . . . . . : No
   Autoconfiguration Enabled . . . . : Yes
   IPv6 Address. . . . . . . . . . . : 2001:0:9d38:90d7:1027:c53:3f57:fff4(Preferred)
   Link-local IPv6 Address . . . . . : fe80::1027:c53:3f57:fff4%15(Preferred)
   Default Gateway . . . . . . . . . : ::
   NetBIOS over Tcpip. . . . . . . . : Disabled

Tunnel adapter isatap.{7E677023-7BBD-4AAD-A03D-2FF40B611264}:

   Media State . . . . . . . . . . . : Media disconnected
   Connection-specific DNS Suffix  . :
   Description . . . . . . . . . . . : Microsoft ISATAP Adapter
   Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
   DHCP Enabled. . . . . . . . . . . : No
   Autoconfiguration Enabled . . . . : Yes

Tunnel adapter Reusable ISATAP Interface {96471925-34B8-4D64-9681-FEE3AEC99F49}:


   Media State . . . . . . . . . . . : Media disconnected
   Connection-specific DNS Suffix  . :
   Description . . . . . . . . . . . : Microsoft ISATAP Adapter #2
   Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
   DHCP Enabled. . . . . . . . . . . : No
   Autoconfiguration Enabled . . . . : Yes

EDIT:

Router model is a Cisco DPC3925. But I had a different router (and ISP) when this all started, and I also have the problem while using other connections. The adapter I usually use is the "Atheros AR9287 Wireless Network Adapter" since I mostly connect through wi-fi. I have tried the Marvell Yukon LAN port, but it was no different than wireless, so I'm pretty sure it's not a hardware issue.

Could anyone recommend a good Linux build that I may test a theory? Maybe something went wrong in the installation, and Windows is the problem. I'm thinking I can boot into Linux on a Stick and do a speedtest from it maybe it will prove me right or at least point back at the hardware issue...

Answer 1

Assuming that this is a software problem, here are some suggestions.

It's possible that refreshing has returned some security software that was previously disabled or has reset some other parameters in Windows. Try to :

1. Disable all antivirus and firewall.
2. Try to boot in Safe Mode. If the slowdown doesn't happen in this mode, then some installed product is responsible for it. Autoruns is a handy tool for disabling startup programs that you suspect of being the cause.
3. Fully patch Windows including optional updates (device drivers are always optional).
4. Disable all network adapters except the one that provides Internet. Preferably use the wired adapter to reduce the number of factors.
5. Use sfc /scannow to scan the integrity of Windows (most probably it won't find anything, but just in case).

Remark: The laptop's specifications link that you posted is no longer valid.

Answer 2

first you should download Ubuntu Linux desktop CD and start from the CD (or USB with Unetbootin) with out installing it.

if it is slow there too, it seems like your hardware is kind of broken.

if it is fast there it has to be a software problem.

Another blind guess is that you could have another device in your network that gets the same IP or with the same hostname?

Answer 3

Delete your current driver and re-install it. I guess your driver is this one? WiFi Driver

Use compmgmt.msc to reinstall

Answer 4

I recently did system restore for my Acer laptop Aspire 4743G but the internet connection was very slow. I uninstalled the McAfee Internet Security which was pre-installed. Now, the internet connection has been restored.